[pdurrant]

Originally Posted by poohbear_nc

Is this cheating?

Spoiler:

Cut the cake in half = 1 cut
Stack the 2 pieces and cut in half again = 2nd cut
Stack the 4 pieces and cut in half again = 3rd cut

Or do all pieces have to remain on the same level?

Congratulations to you, too. That's a right answer.

Spoiler:

It's not actually necessary to stack the two halves after the first cut; you can just make the second cut at right angles to the first to get the four quarters, and then just do the stacking once.